The episode begins with a high-stakes duel in the 75th-floor coliseum. Kirito fights the leader of the Knights of the Blood Oath, Heathcliff, to secure Asuna's freedom from the guild.
: Asuna arrives to save Kirito, but hesitates to kill Kuradeel. Kuradeel attempts a sneak attack, which Kirito blocks—losing his hand in the process—before killing Kuradeel with the «Embracer» martial arts skill. Sword Art Online Episode 10
: In the aftermath, Kirito and Asuna confess their love. Kirito proposes they leave the front lines, and the episode ends with them planning to marry and move to a house on the 22nd floor. The episode begins with a high-stakes duel in
Sword Art Online Season 1, Episode 10, titled , originally aired on September 8, 2012. It marks a pivotal turning point in the Aincrad arc, featuring the first major confrontation between Kirito and Heathcliff and the formalization of Kirito and Asuna's relationship. Plot Summary Sword Art Online Season 1, Episode 10, titled